BMW expects its car sales in China to rise by a mid-single-digit percentage this year, in line with the overall growth of the world’s biggest passenger car market, board member Ian Robertson said on Monday.Last year, BMW sold 460,000 cars in China, marking a 1.7 percent rise, said Robertson, who is responsible for marketing and sales. Growth is expected to accelerate once the long wheelbase BMW X1 is launched, helping BMW to increase the number of locally manufactured vehicles to six, Robertson said. BMW expects its sales in the United States and across the globe to rise by a single digit percentage this year, Robertson said.